Apparatus for equipping vehicle-wheels with tires of rubber or other elastic material.



No. 697,44I. Patented Apr. I5, I902.

V W. S. BROOKS.

APPARATUS FOR EOUIPPING VEHICLE WHEELS WITH TIRES OF RUBBER OR OTHER 7ELASTIC MATERIAL.

(Application filed May 20, 1901.)

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A TTOHNE Y- No. 697,44l. Patented Apr. l5, I902.

' W. S. BROOKS.

APPARATUS FOR EQUIPPlNG VEHICLE WHEELS WITH TIRES 0F RUBBER on omenELASTIC MATERIAL.

(Application filed my 20, 1901.)

(No Modem I I my II 1/ UNITED STATES v PATENT OFFICE.

WILLIAM S. BROOKS, OF AKRON, OHIO.

APPARATUS FOR EQUIPPING VEHICLE-WHEELS WITH TIRES 0F RUBBER OR OTHERELASTIC MATERIAL.

SPECIFICATION forming part of Letters Patent N 0. 697,441, dated April15, 1902.

Application filed May 20, 1901.

To all whom it may concern:

Be it knownthat 1, WILLIAM S. BROOKS, a resident of Akron, in the countyof Summit and State of Ohio, have invented certain new and usefulImprovements in-Apparatus for Equipping Vehicle-Wheels with Tires ofRubber or other Elastic Material; and I do hereby declare the followingto be a full,'clear, and exact description of the invention,-suc h aswill enable others skilled in the art to which it pertains to make anduse the same.

My invention relates to improvements in apparatus for equipping avehicle-wheel with a tire of rubber or other elastic material,which isheld in place on the periphery of the wheel by an endless band or bandswhich pass through the rubber or elastic body circumferentially of thewheel.

The object of this invention is to provide apparatus of the characterindicated which is simple in construction, conveniently operated,reliable in' its operation, and well adapted for use in the tireequipment of- Wheels varying in diameter.

With this object in view and to the end of realizing other advantageshereinafter appearing my invention consists in certain features ofconstruction and combinations of parts hereinafter described, andpointed out in the claims.

In the accompanying drawings,Figure I is a top plan of apparatusembodying my invention, and portions are broken away in this figure toreduce the size of the drawing. Fig. II

is an elevation in detail, largely in section on line II II, Fig. I,illustrating the windingdrum for tightening the retaining band ,or handsof a tire which is to be applied'to the rim of a vehicle-wheel andillustrating the operation of the means employed in securing the saidband or bands to the-drum. Fig. III is an elevation in detail, mostly insection on line III III, Fig. I, looking in the direction indicated bythe arrow. Fig. IV is an elevation in detail, mostly in section on lineIV IV, Fig.1, looking'in the direction indicated by the arrow. Figs. V,VI, VII, and VIII are vertical sections on lines V V, VI VI, VII Vl'Land VIII VIII, respectively, Fig. I, looking in the direction indicatedby the arrows. Fig. IX is a top plan of the lower disk Serial No.61,110. (No model.)

or collar 12. Fig. X is a bottom plan of the upper disk or collar 14.

The parts illustrated in the figures from II to X, inclusive, are drawnon a larger scale than in Fig. I.

Referring to the drawings, a represents a vehicle-wheel which is to beequipped with a rubber or elastic tire by apparatus embodying myinvention. a designates the metal rim with which the 'said wheel isprovided,

and 12 represents the elastic tire which is to encircle the rim andto'be secured in position between the circumferentiallyextending flangesa and 0. with which the rim a. is provided. The retaining band or bands0 and c,

employed in holding the tire upon the rim a,

are made, preferably, of wire and passed through the tirecircumferentially of the wheel.-

Preferably two bands 0 and c are employed in holding the tire upon therim and extend through the inner portion of the tire a suitable distanceapart widthwise of the rim. The work which is to be done by my improvedapparatus is to spread apart opposite ends of the tire, to firmly holdthe bands 0 at one end, then to pull upon the opposite end oftheban'dsfthen to firmly clamp the lastmentioned end of the bandspreparatory to the trimming of the last-mentioned end, and securingoppositeends of each band together, so as to form an endless band,whereupon the ends and the tire through which the bands pass arereleased, so as to permit the separated ends of the tire to cometogether.

Any means for supporting the wheel to be equipped with a tire may beemployed, al-

or securing togctherof opposite ends of thebands.

The clamping means for holding theretaining-bands c and c at one endpreparatory totightening the said bands by'pulling upon IOO their otherends comprises, preferably, a pair of clamping-jaws eand f, arranged oneabove the other externally of and approximately radially to the wheelwhich is to be equipped with the tire. The said jaws e and f are (seeFigs. V and VII) carried by a plate g, which is provided upon its-underside with a depending vertical cylindrical lug g, which has bearing inthe stationary bed 71 of the machine. The jaw-bearing plate 9 istherefore swiveled to or pivotally mounted upon the bed It and capableof oscillating in a horizontal plane and is provided with twoupwardly-projecting members g and 9 arranged at opposite sides,respectively, of the jaws. Preferably member 9 is integral with theplate g, and member 9 mounted upon the said plate g. The upper jaw e ispivoted horizontally, as at e, to and between the members g and 9 Thelower jaw f is rigidly clamped between the said members 9 and g by meansof a bolt j and nut j or in any other approved manner. The pivot e ofthe upper jaw e is formed by a bolt; but this jaw is never clampedbetween the members g 'and 9 The lug g extends downwardly through thebed It and is screw-threaded at its lower end below the bed. The lug 9forms, therefore, a stud, and a correspondingly-threaded nut g ismounted upon this stud under the bed, and a washer g is interposedbetween the nut and the bed. The nut g is not tightened against the bed,but only prevents displacement of the plate 1 and the jaws e and f,carried by the said plate, upwardly from the bed without interferingwith the capability of the said plate to swing or oscillate in ahorizontal plane upon the bed.

To enable the clamping-jaws e andf to operate simultaneously upon thetwo tire-retaining bands 0 and c, a clamping-plate Zis interposedbetween the opposing faces of the two jaws and held in place laterallyby two vertically-arranged pins Z, set in the lower jaw f and looselyextending through the plate I, and the upper jaw c is suitably recessedto accommodate the location of the said pins. The plate Z is movable upand down the pins Z and can be removed upon lifting the upper jaw cafter a removal of the pivot 6'.

Means for rendering the upper jaw e operative or inoperative by tiltingit toward or from the companion and stationary jawf is provided andcomprises, preferably, an eccentric on, which is arranged within a slotor recess 6 formed vertically and longitudinally in the outer end of thearm c of the jaw e. The eccentric m is pivoted horizontally, as at m, toand transversely of the said arm. The

lower jawfis formed by one end of a barf,

- which extends underneath and longitudinally farther separated from thesaid jaw f, and thereby rendered inoperative, according as the eccentricby a proper manipulation of the lever m with which the eccentric isprovided, is turned in the one or the other direction. The barf isprovided next below the sweep of the eccentric m with a block 12, ofhard steel or other durable material, and this block a has its upperside engaged by the peripheral surface of the eccentric. The block n ismovable up and down a recess f with which the jaw-bar f is provided, andrests upon the upper end of a vertically-arranged screw 71, whichengages a correspondinglyarranged and correspondingly-threaded hole fformed in the lower wall or bottom of the said recess. Obviously theblock 91. lowers by gravity or is elevated, according as the screw n isturned in the one direction or the other, and the throw of the eccentricwill be greater or less, according as the block a is raised or lowered.Obviously the arm 6 of the upper jaw is heavy enough to tilt downwardlyby gravity upon rendering the eccentric m inoperative, and thereby toelevate or separate the said jaw e from the jaw f. It will be observedalso that my improved means for operating the upper jaw is exceedinglysimple and durable, and no spring or other additional device is requiredto separate the jaw e from the jawf upon the rendering of the eccentricinoperative. Y

The two tire-retaining bands 0 and 0 pass from a point centrally betweenthe clamping means comprising the jaws e andf and the clamping meanscomprising the jaws 1' and s, hereinafter described, to and between thejaws e and f into one end of the tire and thence through andcircumferentially of the tire out at the opposite end of the tire to andbetween the jaws rand 3. One of the bands 0 extends transversely of andbetween the jaw e and the upper surface of the plate Z, and the otherband 0 extends transversely of and between the said plate 5 and the faceof thejawf. By this construction both bands 0 are obviouslysimultaneously clamped or released, according as the upper jaw e isduring the operation of the eccentric m tilted to the required extenttoward or from the lower jawf. If the tire is provided with only onetire-retaining band 0, a removal of theplate Zfrom between the jaws cand fis effected and the eccentric-engaging block n readjusted toincrease the throw of the eccentric and enable the upper jaw e tooperate upon the bands are secured, as will hereinafter appear. Thedrum. 0 (seeFigs. II and III is arranged vertically at and a suitabledistance from the outer end of the jaw-bearing plate g and rests uponthe bed It. The drum 0 is tubular and has the lower end thereof turnablyembra'c-, ing a correspondingly vertically-arranged cylindrical lug orstud h, which projects up- Wardly from and is rigid with the bed 72. Thedrum 0 is provided at its upper end with a hand-lever 0'- for turningthe same. The drum 0 is provided internally of its upper portion with avertically-arranged screw 0 which engages corresponding threads formedupon the surrounding wall of the upper end of the bore extending throughthe drum. The screw 0 has its lower end engaging the upper and largerend of a wedge w, which is contained within the central portion of thebore of the drum and arranged with its smaller end lowermost. The wedgew extends through a vertical slot u,formed in ahorizontally-arrangedpinor member a, which extends transversely of and through the drum .0and is shiftable endwise, and the surrounding wall of the bore of thedrum has two oppositely-arranged and registeringlateral apertures orholes 0 to accommodate the location and operation of the said pin 'Lt.One of the pin-engaging holes 0 has its outer end enlarged top andbottom to form two outwardly-facing shoulders o and 0 engaged by thedifierent bands .0 and 0, respectively, and the pin a has twoinwardly-facin g shoulders of and a arranged opposite the shoulders 0and o. in position to clamp the bands against the said shoulders o and 0The arrangement of the parts is such that the pin u is actuated endwisein the direction required to cause the shoulders 11, of the pin to clampthe bands 0 against the shoulders 0 of the drum, when the wedge w islowered by turning the screw. 0 in the direction required.

The clamping means forlholding the retainin'g-bands in their tightenedposition afterthe operation of the band tightening drum 0 and comprisingthe jaws r and s is substantially the same in construction as theclamping means already described for holding the bands at one endpreparatory to placing the bands under tension. The jaws r and s arearranged externally of and approximately radially to the wheel which isto be equippedwith the .tire. The pairs of jaws e f and 'r s arearranged a suitable distance apart laterally, as already indicated, and

converge toward the axis of the wheel. The jaws 'r and 8. (see Figs. VIand VIII) are arranged one above the other and are car-- ried by.a.plate t, which is provided upon its under side with a dependingverticallyarranged cylindrical stud-.forming lug t, which has bearing inthe slide 00.. The plate t is therefore pivotally mounted upon the slidew and is capableof oscillating or swinging in a horizontal. plane,having two upwardly-pro jecting members i? and t arranged at oppositesides, respectively, of the jaws. Preferably the member 15'' isintegralwith the plate 25, and member if? is mounted upon the saidplate. The upper jawm is pivoted horizontally, as at r, to and betweenthe members .2? and t of the plate 15, and the lower jaws is clampedbetween the said members i andt by means of a' suitably-applied bolt andnut 7c. The pivot r of the jaw'r is shown formed byabolt. The studt'extends through- A nut t is mounted upon .the'

the slide 00. stud t below the slide 00, and a washer fiis interposedbetween the nut and the slide. The nut 25 is not tightened against theslide 00, but only prevents displacement of the plate t and thejaws'rand 8, carried by the said plate, upwardly from the slide withoutinterfering with the capability of the said plate to swing or. oscillatein a horizontal plane upon the slide.

To enable the clamping-jaws r and s .to operate simultaneously upon thetwo tire-retaining bands 0 and c, a clamping-plate l is provided andinterposed between the .opposing faces of thesaid jaws and held in placelaterally by two vertically-arranged pins 1', set in .the' lower jaw sand loosely extending through the said plate Z, and the upper jaw r issuitably recessed to accommodate the location of the said pins. The saidplate Z is mov able up and down the said pins 1' and can be removed uponlifting the upper jaw 1' after a removal of the pivot 'r'.

The means employed for rendering the upper jaw r operativeorinoperativeby tilting it toward or from the companion and stationary jaw s issubstantially the sameas the means already described in connection withthe operation of the jaws e and f, comprising an eccentric m, which isarranged within a arrangement of parts is such that the upper jawr istilted toward the lower jaw s, and thereby rendered operative, orseparated farther from the said jaw s, andthereby rendered inoperative,according as the eccentric by a proper manipulation of the lever m ,withwhich the eccentric is provided, is turned in the one direction or theother. The bar 8 is provided next below the sweepof the eccentric with ablockn, of hard steel ordurable material, and this block it is engagedby the peripheral surface of the eccentric. The said block n is movableup anddown a recess 8?,- with which the jaw-bar s is provided,and restsupon the upper end of a vertically-arranged screw 71., which engages acorrespondinglys formed in the lower wall orbottom'of the I I 5 borneupon by the said eccentric m, and the said recess. Obviously the'saidblock n lowers by gravity or is elevated, according as the engagingscrew 71/ is turned in the one direction or the other, and the throw ofthe eccentric will be greater or less, according as the said block or israised or lowered. One of the bands 0 extends transversely of andbetween the jaw r and the upper surface of the plate Z, interposedbetween the jaws r and s, and the other band 0 extends transversely ofand between the said plate Z and jaw s, and by this construction bothbands 0 are obviously simultaneously clamped or released between thejaws r and 3, according as the upper jaw r is during the operation ofits eccentric m tilted to the required extent toward or from the lowerjaw s. It the tire is provided with only one tire-retaining band 0, aremoval of the plate Z, interposed between the jaws r and s, is efiectedand the block at of the jawbar 8 readjusted to increase the throw of theeccentric and enable the upper jaw r to operate upon the single band,which obviously would then be directly engaged by both jaws r and 8 uponbeing clamped between the said aws.

The slide no (see Figs. I, III, and VIII) is arranged to movehorizontally toward and from the pair of jaws e andf, engagingcorrespondingly-arranged slideways or guides 72/ with which the bed h isprovided. The slide x has its outer end, forming a nut 00, arrangedlengthwise of the slide and engaged by a correspondingly-threaded screw00 which has bearing in a box h formed upon the bed h, which is cut awayor slotted, as at h, below the path of the slide 00 from the inner endof the box h to and a suitable distance beyond the inner end of the saidpath. The screw :0 is provided next adjacent to the inner end of the boxIt with a collar 00 and a handwheel 00 is fixed upon the screw and hasits hub engaging the outer end of the said box h. The hub of the wheelat and the collar m render the screw m stationary so far as endwisemovement of the screw during the rotation of the screw is concerned.Obviously by the construction hereinbefore described the slide a; andthe jaws r and 8, carried by the said slide, are moved toward or fromthe jaws e and f, according as the screw 00 is rotated in the one or theother direction, and hence the distance between the clamping meanscomprising the jaws e and fand the clamping means comprising the jaws rand s can be enlarged or decreased to render the distance apart of thetwo clamping means most advantageous to the work to be done and toaccommodate the trimming of the ends of the bands 0 when the same havebeen tightened as required preparatory to welding or securing togetherthe ends of each band;

The wheel which is to be equipped with a tire is supported (see Figs. Iand 1V) from a table 3 which abuts against the rear edge of the bed h.The table y is provided centrally with a slot y, which extends forwardlyand rearwardly and is arranged at right angles to the travel of theslide as. A vertically-arranged stem 1/ extends through the slot y and asuitable distance above the table 11. Two disks l2 and 14 looselyembrace and are turnable upon the stem 3 and arranged one above theother. The lower disk 12 rests directly upon the table 7 and the upperdisk 14 rests upon the disk 12. The stem y next above the upper disk 12has a collar g and the wheel it rests at its hub a upon the collar 11Two open-ended recesses 13 and 15 are formed in the opposing faces ofthe disks 12 and 14, respectively, at opposite sides, respectively, ofthe stem 3 and two bars 16 and 17 extend through the different recesses13 and 15, respectively. The bar 16 extends in under thejaw-barf, (seeFigs.V and VII,) between the said barf and the plate g. Endwisedisplacement of the bar 16 is prevented by pins 18, which engageregistering holes or recesses formed in the opposing sides of the bars16 and f. The bar 17 extends in under and longitudinally of thejaw-bars, (see Figs. VI and VIII,) between the said bar 8 and the platet, and pins 19, which engage registering holes or recesses formed in theopposing sides of the said bars .9 and 17, prevent endwise displacementof the bar 17.

It is desirable that the clamping-jaws e f and r 3 shall at all times berendered as nearly radially as possible relative to the axis of thewheel which is to be equipped with the tire, and the importance,therefore, of having the said jaws carried by plates g and t capable ofswingingor oscillating in a horizontal plane is obvious. The stem g andthe disks or collars 12 and 14 form a wheel-carriage for bearing thewheel which is to be equipped with a tire, which carriage is slidable oradjustable upon the table 3/, along the slot y in the said table, andthe side walls of the said slot, engaging the stem or member U2 of thesaid carriage, form means for guiding the carriage. The capability ofthe disks or collars 12 and 14 to turn in a horizontal plane and thecapability of the plates 9 and tto oscillate in a horizontal plane andthe connection between the vplates g t and the collars 12 and 14 by thebars 16 and 17, respectively, enable the proper arrangement of theclamping means carried by the said plates 9 and t at all times andautomatically relative to the wheel which is to be equipped with thetire. I would have it understood, however, that my invention embraces,broadly, any construction whereby the plates g and tare oscillated inopposite directions and actuated simultaneously during the shifting ofthe wheel-carriage relative to the clamping apparatus of the saidplates.

What 1 claim is- 1. A machine of the character indicated, thecombination with a winding-drum having a bore formed therein andextending longitudinally of the drum, of an endwise-shiftable pin ormember 10 extending transversely of the drum and having bearing inopposite walls of IIO the bore and provided with an inwardly-facingshoulder a arranged to clamp the tireretaining wire to the drum, andmeans for shifting the said endwise-shiftable member, substantially asand for the purpose set forth.

2. In a machine of the character indicated, the combination, with asuitably-supported upright winding-drum having a hole or bore formedtherein and extending longitudinally of the drum, and provided with twooppo sitely-arranged and registering apertures or holes and 0 formed inthe surrounding wall of the said bore, of an endwise-shiftable pin ormember u extending transversely of the drum and engaging the said holes0 and o and provided with-an inwardly-facing shoulderu arranged to clampa tire-retaining wire to the drum, and means for shifting the saidendwise-shiftable member, substantially as and for the purpose setforth.

3. In a machine of the character indicated, a winding-drum having aboreformed therein and extending longitudinallyof the drum, of

5 an endwise-shiftable pin or memberu, extendf ing transversely of andhaving hearing within the drum and provided with an inwardlyfacingshoulder 16 arranged to clamp the tireretaining wire to the drum, awedge extendingthrough and transversely of the said endwise-shiftablemember, a screw within the aforesaid bore of the drum in position tooperate the wedge, and screw-threads formed" upon the surrounding wallof the said bore and engaged by the screw, substantially as andfor thepurpose set forth.

4'. In a machine of the character indicated, the combination, with asuitably-supported uprightwinding drum having a bore or hole extendingfrom its upper enddownwardly," screw-threads formed upon the upperportion of the surrounding wall of the said bore, twooppositely-arranged and registering lateral apertures or holes'o and'oformed in the said wall below the aforesaid threads, and an outwardly-facing shoulder otformed upon the surrounding wall of one ofthesaid lateral holes or apertures, of an endwise-shiftable pin ormemberu extending transversely of the drum and engaging the said holes 0and 0 and provided with a vertical slot u and'an inwardly facingshoulder a opposite the aforesaid shoulder 0 a'wedge w extending throughthe slot in the endwise=shiftable memtering lateral apertures or holes'0 and 0 and the slot in the endwise-shiftablemember and arranged withits smaller end lowermost, and a screw engaging the aforesaid threads ofthe surrounding wall of the bore of thedrum and arranged to operate thewedge, substantially as and for the purpose set forth.

; 6. In a machine of the character indicated,

two clamping mechanisms arranged a suitable distance apart laterally andadapted to clamp opposite ends,*respectively, of a tireretaining band orbands; two-plates carrying the diiferent clamping mechanisms,respectively, and capable of oscillating or swinging in a horizontalplane; a wheel-carriage arranged between and a suitable distance fromthe axes of the aforesaid plates and shiftable toward and from the saidplates, and means whereby the said plates are automatically actuated inopposite directions, respectively, during the shifting of thewheel-carriage toward or from the said plates, and the arrangement oftheparts being suehthat the. two clamping mechanisms are caused to approachor recede from each other accordingas the wheel-carriage is shiftedtoward or from the aforesaidplates,substantially as and for the purposeset forth.

7. In a machine of the characterindicated,

two clamping mechanisms arranged a suitable distance apart laterally'andadapted to clamp opposite ends, respectively,, of a tireretaining bandor hands; two plates g and 15 carrying the different clampingmechanisms, respectively, and supported so as to render them capable ofoscillating or swinging in a horizontal plane; a wheel-carriage arrangedbetween and a suitable distance from the axes of the aforesaid platesand comprising two disks 12 and 14 arranged one above the other withopen-ended recesses 13 and 15 formed in the opposing faces of the disks12 and 14, respectively, and bars 16 and 17 engaging the recesses 13 and15, respectively, and attached to the aforesaid plates 9 and 1,

respectively, substantially as and for the purpose set forth. 7

8. A machine of the character indicated, comprising a table; twosuitably-supported rotary disks '12 and 14 shiftable forwardly andrearwardly upon the said table and having, respectively, the open-endedrecesses 13 and 15 formed in their opposing faces at opposite sides,respectively, of the axes of the disks; a bed h arranged forwardly ofthe aforesaid table; a plate g swiveled or pivotally mounted upon thesaid bed and arranged to swing or oscillate in a horizontal plane;clamping means carried by the said plate; the slide :10 movable towardand from the plate g; means for operating the slide; a plate tswiveledor pivotally mounted upon the slide and arranged to swing or oscillatein a horizontal plane, clamping means carried by the said plate t, andtwo bars 16 and 17 engaging the aforesaid recesses 13 and 15,respectively, and attached to the said plates g and 1%, respectively,all arranged and operating substantially as shown, for the purposespecified.

9. A machine of the character indicated, comprising ahorizontally-arranged table 3 provided centrally with a forwardly andrear- .wardly extending slot y; a verticallyarranged stem g extendingthrough the said -slot; two disks or collars 12 and 14 turnablyembracing the said stem and having, respectively, the open-endedrecesses 13 and 15 formed in their opposing faces, at opposite sides,respectively, of the stem; a bed h arranged forwardly of the aforesaidtable; a plate 7 swiveled or pivotally mounted upon the said bed andarranged to swing or oscillate in a horizontal plane; clamping meanscarried by the said plate; a slide a: movable toward and from the plate9; means for operating the slide; a plate 15 swiveled or pivotallymounted upon the slide and arranged to swing or oscillate in ahorizontal plane; clamping means carried by the said plate 15, and twobars 16 and 17 engaging the aforesaid recesses 13 and 15, respectively,and attached to the plates 9 and 6, respectively, all arranged andoperating substantially as shown, for the purpose specified.

10. A machine of the character indicated, comprising ahorizontally-arranged table y provided centrally with a forwardly andrearwardly extending slot y; a vertically-arranged stem 3 extendingthrough the said slot; two disks or collars 12 and 14 loosely embracingthe said stem and having, respectively, the two open-ended recesses 13and 15, formed in their opposing faces at opposite sides, respectively,of the stem; two bars 16 and 17 engaging the recesses 13 and 15,respectively,and extending forwardly from the disks or collars; a bed Itarranged forwardly of the aforesaid table; a plate g swiveled orpivotally mounted upon the said bed and capable of swinging oroscillating in a horizontal plane, which plate has two upright members gand g arranged at opposite sides, respectively, of the bar 16; clampingmeans over the said bar 16 between the said members g and g andcomprising an upper jaw tiltable in a vertical plane and a relativelystationary lower jaw; means for attaching the aforesaid bar 16 to thesaid lowerjaw; aslide w movable toward and from the aforesaid plate g;slideways for the slide; a plate 15 swiveled or pivotally mounted uponthe slide so as to render the said plate 15 capable of swinging oroscillating in a horizontal plane, which plate t has two upright membersi and 25 provided at opposite sides, respectively, of the aforesaid bar17; clamping means over the said bar 17 between the members i and t andcomprising an upper jaw tiltable in a vertical plane and a relativelystationary lower jaw; means for attaching the said bar 17 to thelast-mentioned lower jaw, all arranged and operating substantially asshown, for the purpose specified.

Signed by me at Cleveland, Ohio, this 13th day of May, 1901. r

WILLIAM S. BROOKS. Witnesses:

O. H. DORER, A. H. PARRATT.

